Levi d



(No Model.)

L. D. VAN VALKENBURG.

BOBBIN SUPPORT FOR SPINNING SPINDLES. No. 398,809. A Feb. 26. 1889.

NITED STATES PATENT OFFICE.

LEVI D. VAN VALKENBURG, OF HOLYOKE, MASSACHUSETTS, ASSIGNOR OF ONE-HALF 'IO JOSEPH M. DI NI-IAM, OF SAME PLACE.

BOBBl-N-SUPPORT FOR SPINNING-SPINDLES.

SPECIFICATION forming part of Letters Patent No. 398,809, dated February 26, 1889.

Application filed October 18, 1887- Serial No. 252,761. (No model.)

ports for SpinningSpindles, of which the fol lowing is a description sufficiently full, clear, and exact to enable any person skilled in the art to which said invention appertains to make and use the same, reference being had the button or bobbin-support 011 the shoulder to the accompanying drawings, forming a part of this specification, in which Figure 1 shows a portion of a spindle and a sectional view of my improved button or bobbin-support and check-nut thereon; Fig. 2, a side elevation of the same, the entire spindle being shown; and Fig. 3, a plan of the button. or bobbin-support and check-nut.

Like letters of reference indicate corresponding parts in the different figures of the drawings.

My invention relates more especially to spindles employed on spinning-frames and twisters; and it consists of an improved button or bobbin-support for said spindles and checkmut for the same, whereby said checknut prevents said but-ton from unscrewing and slipping on the spindle. r

The nature and operation of the improvement will be readily understood by those conversant. with such matters from the following explanation.

In the drawings, A represents the button or bobbin support, B the check-nut, and E the spindle proper. The button A is interiorly threaded at its lower end, as shown in Fig. 1, and chambered on its upper side, as shown at G,to receive the checknut B. The spindle E is exteriorly threaded at C, to correspond with the interior threads of button A and check-nut B. The button A is screwed down onto the shoulder F of the spindle E, and the check-nut B is screwed down firmly onto the bottom of the chamber G by means of a suitable implement inserted in the slots H at the top of said cheek-nut. The button A is provided with pins or lugs D, which enter the bottom or under side of abobbin, said bobbin being provided with holes or other suitable means on its under side, adapted to receive the pins or lugs D on the button A,

which prevents said bobbin from slipping on the button.

As spindles of this character are intended to rotate in only one direction-either to the right or to the leftthe screw-threads on the spindles, and within the buttons or bobbinsupports, are made either right or left hand, ac-

i cording to the direction in which the spindles are intended to rotate, whereby the sudden stopping of the spindle by taking hold of the bobbin, which is often done, would tighten of the spindle, and by reversing the rotation of the spindle the aforesaid manner of stop ping the spindle would loosen instead of tighten the button on the shoulder of the spindle; and as it occasionally becomes necessary to reverse the rotation of the spindles or cause them to rotate in an opposite direc tion from that in which they were intended much difficulty is then experienced, owing to the unscrewing and slipping of the buttons or bobbin-supports on the spindles, which deprives the yarn or thread of its required twists.

My invention is designed to overcome this and other objections and difficulties; and to that end I make use of the means described whereby the buttons or bobbin-supports are firmly held in position on the spindles by means of the check-nuts B, and may rotate either to the right or to the left without unscrewing and slipping on the spindles.

Having thus explained my invention, what I claim is 1. The combination,with the screw-threaded spindle, of the int-eriorly threaded button or bobbin-support A and the interiorly-threaded check-nut B, said button being chambered on its upper side to receive the check-nut, substantially as described.

2. The combination,with the screw-tln-eaded spindle, of the interiorly-threaded button A, chambered at G and provided with the pins or lugs D, and the check-nut B, formed with the slots H, substantially as described.

October 12, 1887.

LEVI D. VAN VALKENBURG.

\Vitnesses:

' JOHN J. REARDON,

OPHIR GENEST. 

